With the help of gene-edited axolotls, researchers have gotten one step closer to enabling human limb regeneration Axolotls are helping scientists understand the key to limb regeneration. Alyssa Stone / Northeastern University Axolotls have a superpower: The adorable, perpetually smiling salamanders have the ability to regrow missing body parts in just a few weeks. Now, in a new study that scientists say could one day help humans regenerate limbs, researchers have revealed how the animals pull t...